sul
sul — combining form
1. a prefix meaning 'containing sulfur' or 'relating to the sulfonic acid group (SO
a prefix meaning 'containing sulfur' or 'relating to the sulfonic acid group (SO₃H)', used in the names of chemical compounds and medicines. For example, sulfonamide drugs contain a sulfur-based functional group, and sulfuric acid is a strong sulfur-containing acid.
The doctor prescribed a sulfonamide antibiotic for Selim's urinary tract infection.
sul- + -amide: drug names containing sulfur
Nia synthesised a sulfonate salt during her final-year chemistry project.
sul- + -onate: naming sulfur-containing salts
Quan carefully added sulfuric acid drop by drop to the reaction flask.
Hana learned that sulfoxide compounds are important in the synthesis of medicines.
文法句型
sul- + noun (forming chemical/medical terms)
用法筆記
The spelling 'sul-' is used before consonants (e.g. sulfonamide, sulfate); before vowels the form is usually 'sulf-' (e.g. sulfoxide, sulfonic). British English sometimes uses 'sulph-' (sulphonamide, sulphate).